Sandy's submarine is a large submarine that was first used by SpongeBob and Patrick to get the clarinet reed out of Squidward. It appears in the episodes "Squidtastic Voyage," "Hide and Then What Happens?," "Bubble Troubles," and "It Came from Goo Lagoon," and also the game InvasiVoyage.
In "Squidtastic Voyage," it colored dark lavender with dark blue borders near the windows.
In "Hide and then What Happens," the submarine is orange with blackish-gray borders and a wide circular window in front.
In "Bubble Troubles" and "It Came from Goo Lagoon," it is dark red with white borders.
After dislodging the reed from Squidward's throat, Patrick accidentally turns the submarine back to large size, causing SpongeBob and him to be stuck in the submarine, which is still inside Squidward.
"Hide and Then What Happens?"
SpongeBob uses it to find Patrick.
Sandy uses it to go to the surface to retrieve air. However, SpongeBob opens the hatch underwater, letting all the water in it, during which Sandy nearly suffocated.
"It Came from Goo Lagoon"
Sandy, as well as Patrick and SpongeBob, follow the goo bubble and find out what's causing it to move.
|| I can turn into a skyscraper!
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- It's revealed in "It Came from Goo Lagoon" that Sandy has missiles in her submarine in case she gets stuck in traffic.